21435850

素因数分解:

$2^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{8089}}^1$

素因数の和:8154

約数の個数: 24

約数和(自身を含む): 40627980

約数和(自身を除く): 19192130

約数列:

[1, 2, 5, 10, 25, 50, 53, 106, 265, 530, 1325, 2650, 8089, 16178, 40445, 80890, 202225, 404450, 428717, 857434, 2143585, 4287170, 10717925, 21435850]

約数ペア:

[(1, 21435850), (2, 10717925), (5, 4287170), (10, 2143585), (25, 857434), (50, 428717), (53, 404450), (106, 202225), (265, 80890), (530, 40445), (1325, 16178), (2650, 8089)]